| Birth Date: | 2 February 1975 |
| Birth Place: | Ushtobe, Kazakh SSR, Soviet Union |
| Country: | |
| Sport: | Weightlifting |
| Medaltemplates: | Total Total |
Sergey Yuryevich Filimonov (born February 2, 1975) is a Kazakhstani weightlifter who competed in the Men's 77 kg at the 2004 Summer Olympics and won the silver medal with 372.5 kg in total.
He has been a scholarship holder with the Olympic Solidarity program since November 2002. Filimonov represented Russia at the 1996 Summer Olympics in Atlanta, Georgia.